Etymology

rapidly

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Today it means: With speed; in a rapid manner. Full definition →

Proto-Germanic *līką ← Proto-Indo-European *leyg- ← English rapid
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The story

  1. Proto-Indo-European*h₁reh₁p-
  2. Proto-Indo-European*h₁r̥h₁pyéti
  3. Proto-Italic*rapjō
  4. Latinrapiō
  5. Proto-Indo-European*dʰeh₁-
  6. Latinrapidus
  7. Middle Frenchrapide
  8. Latinrapidus
  9. Englishrapid
  10. Proto-Indo-European*leyg-
  11. Proto-Germanic*līką
  12. English todayrapidly

From rapid + -ly.

Etymology from Wiktionary, CC BY-SA 4.0.